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1990 Oldsmobile Cutlass Ciera SL 3.3L Poor Idle Quality, dead cylinder
Posted to GM Driveability on 10/10/2003 5 Replies

customer came in complaining of a rough idle( worse when cold). I checked spark at the coils and at plugs, checked coils and injectors with low current probe and all looked ok. decided to try Motor-vac to see if injectors were plugged. After Motor-Vac engine i...

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car Vehicle Data

1990 Oldsmobile Cutlass Ciera SL

VIN 1G3AM54N9L
Engine3.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / efi
EmissionsUS EPA
SymptomsPoor Idle Quality, Dead Cylinder
OccursAlways
Message Closed w/FIX

car Vehicle Data

1990 Oldsmobile Cutlass Ciera SL

VIN 1G3AM54N9L
Engine3.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / efi
EmissionsUS EPA
SymptomsPoor Idle Quality, Dead Cylinder
OccursAlways